QUESTION 8 An extensive survey in 1970 revealed preschool children spend an average of 6.3 hours per day watching television. The distribution of TV times in normal with a population standard deviation of 2 hours. Last year a sample of 100 preschool children had a mean of 5.8 hours of TV watching per day. Test to determine if the average time preschool children spend watching TV per day has decreased at the 0.01 significance level. Part A- Ho: H = Part B- Ha: H Part C-State alpha Part D-Reject null if (Answer f should be the inequality

QUESTION 8 An extensive survey in 1970 revealed preschool children spend an average of 6.3 hours per day watching television. The distribution of TV times in normal with a population standard deviation of 2 hours. Last year a sample of 100 preschool children had a mean of 5.8 hours of TV watching per day. Test to determine if the average time preschool children spend watching TV per day has decreased at the 0.01 significance level. Part A- Ho: H = Part B- Ha: H Part C-State alpha Part D-Reject null if (Answer f should be the inequality

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question: A research study claims that the average height of adult men in a certain city is 68 inches. A random sample of 25 men is taken and their average height is found to be 66 inches with a standard deviation of 2 inches. Can we reject the claim at a 0.01 level of significance?
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Question 2 The weekly rental prices of rental properties are normally distributed with a mean of $250 and a standard deviation of $50. Calculate the percentage of properties with weekly rental price lower than $150 per week. Answer: Click or tap here to enter text. Calculate the percentage of properties with weekly rental price higher than $300 per week. Answer: Click or tap here to enter text. Calculate the percentage of properties with weekly rental price between $150 and $300 per week. Answer: Click or tap here to enter text.
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Question 7: give the test statistic